Changes to Step #3
Edit by Kyle Wiens —
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[* black] The SIM slot is gone. According to Apple, the SIM card and SIM tray was the only user-servicable part in the iPhone 4. Apple now says "iPhone does not contain any user-servicable parts." We believe you have the [link|http://www.ifixit.com/Manifesto|right to repair your own hardware], and we'll have a repair guide available right away. | |
+ | [* black] Here's a brief overview of the iPhone's cell phone frequencies, in case you forgot: |
+ | [* black] The GSM iPhone has antennas capable of communicating onUMTS/HSDPA/HSUPA (850, 900, 1900, 2100 MHz), GSM/EDGE (850, 900, 1800, 1900 MHz), 2400 MHz for Bluetooth, and finally 2.4 and 5 GHz for WiFi. |
+ | [* black] CDMA carriers don't't operate on as many frequency bands. The Verizon iPhone can talk on 800 and 1900 MHz for CDMA EV-DO Rev. A plus the standard 2400 MHz for Bluetooth, and 2.4 and 5 GHz for WiFi. |